fertiliser

Question

what is the best fertilizer to use for potted bougainvillea?

Answer 1

Use complete, balanced fertilizers with a nitrogen, phosphorus and potassium (N-P-K) ratio such as 5-5-5 or 10-10-10 to promote good bougainvillea health and plentiful flowers. Too much nitrogen promotes vegetative growth at the expense of blooms, so slow-release fertilizers that moderate nitrogen release are best.

https://www.gardeningknowhow.com/ornamental/vines/bougainvillea/bougainvillea-garden-care.htm